Work rest



Mmh 4, 19240 H. W. MELLlNG WORK REST Filed Sept. 27. 1922 INVENTOR./76//770/7 h Mam/7g BY f ATTORNEY$ Patented Mar. d, 1924.

warren 'srarss MEAN W. MELLING, F JACKSON, MICHIGAN.

WORK REST.

Application filed September 27, 1922. Serial No. 590,829.

T0 (1]? whom it may concern:

Be it known that ll, TTERMAN W. MEL- LING. a citizen of the lnitedStates, residing at Jackson, county of Jackson, State of Michigan, haveinvented certain new and useful Improvements in Work Rests, of which thefollowing is a specification.

This invention relates to improvements in work rests for lathes.

The main objects of this invention are to provide an improved work restfor cam shaft lathes such as shown in my application for Letters Patentfiled @ctober, 1917, Serial #416,750, which ma be quickly engaged with,or disengaged rom the Work and which when engaged, is very effective insupporting the work.

A further object is to provide an improved work rest for lathes adaptedto effectively support the work against lateral thrust.

Further objects, and objects pertaining to details and economies ofconstruction and operation will definitely appear from the detaileddescription to follow.

I accomplish the objects of my invention by the devices and meansdescribed in the following specification. The invention is clearlydefined and pointed out in the claims.

A structure which is a preferred embodiment of my invention is clearlyillustrated in the accompanying drawing forming a part of thisspecification, in which:

Fig. I is a fragmentary plan view of a cam shaft lathe only suchportions of the lathe being shown as are deemed necessary to illustratean adaptation of my improvements.

Fig. II is a side elevation of my improved work holder; it being shownin its retracted position by full lines and in its erected position bydotted lines.

Fig. HT is a detail vertical section of a line corresponding to line 3-3of Fig. T.

In the accompanying drawings similar letters of reference refer tosimilar parts throughout several views.

Referring to the drawings, 1 represents the bed of the machine, and 2the work carriage which is provided with rotary work holders, 3. Thesework holders 3 are the work supporting and driving chucks. The work 4shown is a cam shaft. The cutters designated generally by the numeral 5are of the same character as those of my said application for LettersPatent.

My im roved work rest comprises a base 6 adapter? to be secured to thecarriage 2, as by means of the bolts 7; the carriage being provided witha longitudinal groove 8 shouldered to receive the heads of the bolts asshown in Figs. H and HT. This enables theclamping of the base 6 in thedesired position.

The work engaging yoke 9 is pivoted at at 10 and provided with an arm 11adapted to overhang the work when the rest is engaged or erected, asshown by dotted lines in Fig. Ill. The yoke is provided with thrustrollers 12 and 13, the roller 12 engaging the side of the Work oppositethe cutters and the roller 13 engaging the top of the work. The yoke ismoved to and locked in its erected position by means of the lever 14which is pivoted at 15 so that its inner end swings or slides along therear edge 16 of the yoke swinging the yoke to erected position as thelever is depressed and looking it in such erected position. The leversustains the thrust of the yoke and thereby supports the work againstlateral thrust. 17 is arranged to retract the yoke when the The springlever is disengaged so that to disengage the f rest, it is onlynecessary to lift up on the rear end of the lever, the releasingposition being shown by full lines in Fig. II. This provides a verysimple and edective means for operating the rest to engage and disengageit, and at the same time, the work engaging yoke is rigidly supportedand the work in turn is effectively supported against lateral springingwhich is the purpose of the rest in the embodiment illustrated.

ll have illustrated and described my improvements as ll have embodiedthem in practice in a cam shaft lathe illustrated in my said applicationfor Letters Patent. ll have not attempted to illustrate and describecertain other embodiments or adaptations which I contemplate as llbelieve that the disclosure made, will enable those skilled in the artto which my invention relates, to embody or adapt the same as may bedesired.

Having thus described my improvements, what ll claim as new and desireto secure by Letters Patent, is:

1. A work rest comprising a base, a work engaging yoke pivoted on saidbase and adapted when erected to overhang the Work and having thrustrollers thereon engaging the side and top thereof, and a locking leverpivoted on said base at the rear of said yoke so that its inner endengages the rear side of the yoke to swing the same to and lock inerected position.

2;. A Work rest comprising at base, e Work engaging yoke pivoted on saidbase end reee eee edepted When erected to engage the work, 5 and alocking lever pivoted on said base at the rear of said yoke so that itsinner end engages the rear side of the yoke to swing the same to andlock in erected position.

In Witness whereof, I have hereunto set 15 my hend end seal.

HERMAN W. r/rnnrrnte. 1,. 5.

